2008 Audi A6 vs. 2005 Audi RS6
To start off, 2008 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi RS6. In addition, the cost of maintenance, including insurance, on 2005 Audi RS6 would be higher. At 4,171 cc (8 cylinders), 2005 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 5700 RPM) has 189 more horse power than 2008 Audi A6. (255 HP @ 6500 RPM) In normal driving conditions, 2005 Audi RS6 should accelerate faster than 2008 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 75 kg more than 2008 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Audi A6. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS6 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Audi RS6 (560 Nm @ 1950 RPM) has 229 more torque (in Nm) than 2008 Audi A6. (331 Nm @ 3250 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2008 Audi A6 | 2005 Audi RS6 | |
| Make | Audi | Audi |
| Model | A6 | RS6 |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3101 cc | 4171 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 255 HP | 444 HP |
| Engine RPM | 6500 RPM | 5700 RPM |
| Torque | 331 Nm | 560 Nm |
| Torque RPM | 3250 RPM | 1950 RPM |
| Acceleration 0-100mph | 6.9 seconds | 4.7 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1750 kg | 1825 kg |
| Vehicle Length | 4920 mm | 4800 mm |
| Vehicle Height | 1460 mm | 1460 mm |
| Wheelbase Size | 2850 mm | 2770 mm |
| Fuel Consumption Overall | 9.7 L/100km | 14.6 L/100km |
| Fuel Tank Capacity | 70 L | 82 L |
